Machine eor turning cylinders



UNITED STATES PATENT OFFICE.

GIDEON SIBLEY, OF TROY, NEW HAMPSHIRE.

MACHINE FOR TURNING CYLINDERS.

Specification of Letters Patent No. 29,014, dated July 3, 1860.

To (LZZ whom it may concern:

Be it known that I, GIDEON SIBLEY, of Troy, in the county of Cheshire and State of New Hampshire, have invented certain new and useful Improvements in t-he Machine for Turning IVood, Ivory, and other Similar Substances; and I do hereby declare that the following is a full, clear, and exact descript-ion of the construction and operation of the same, reference being had to the drawings annexed, making a part of this specification, in which Figure I, is a perspective view of said machine, a portion of the arch B, being removed for the purpose of better representing certain parts of the machine. Fig. 2, is an end view of said machine, t-he pulley H', and a portion of the frame A, being removed for the purpose of better representing certain parts of the machine. Fig. 3, is a longitudinal sectional view of the cylinder, main shaft and pulleys thereto attached. Fig. 4, is a view of the inside of the cylinder head D, showing the position of the spindles (L, &c., the pulleys b, &c., the pulley I2, and the endless belt J2, by which the spindles are operated.

The same letters in the various figures indicate the same parts of the machine.

A, A, A, A, represent the frame upon which the machine rests, and may be constructed in the form most convenient for the purpose designed.

B, B', are arches constructed of iron or other suitable material, which support the various parts of the mechanism constituting the machine. They are fastened to the frame by screws or bolts 29, p, p, p.

C, is the main shaft on the respective ends of which are pulleys H, H', which receive the power from the motor and communicate the same through their various connections to the different parts of the machine.

D, D, and D', D', are the cylinder heads, which are confined and supported by the braces. J, J', J", J'", the latter being firmly confined by nuts c, c, c, &c., to the outside cylinder heads.

(Z2, (Z2, (Z2, (Z2, are quills on the braces J, J', &c., and serve to separate the two pairs of cylinder heads D, D, and D', D', for the admission of the pulleys which operate the spindles. The heads D, D, and D', D', thus united and arranged constitute the cylinder, which is designed to support the spindles hereinafter described.

(L, a', are pairs of spindles, or mandrels, of which there are six in number, arranged between the two pairs of cylinder heads, near the periphery, at equal distances, as shown `more particularly in Figs. 1 and 4. The otlice of which is to seize and hold firmly the block to be operated upon, and to rotate the same through the intervention of the pulleys b, Z2', unt-il the operationxof turning is thoroughly performed upon it, when they are made to release and deliver' the block from the machine by the mechanism hereinafter to be described.

I, is a ratchet wheel attached by the screws e2, to the cylinder head D, containing as many notches u, u, &c., in its periphery as there are spindles a, &c., used in the machine.

Q, is a lever or arm attached to the crank wheel O, by the wrist pin r, at the other end of which arm is a latch f2, which plays into the teeth u, u, &c., on the ratchet wheel I, and rotates the same as hereinafter described. The crank wheel O, is firmly attached to the shaft- N, on which it revolves. It has on its periphery a cam e', which, in each revolution, comes in contact with the pin j, projecting' from the stop rod V, the end g2 of which plays into the slats n, o, &c., in the cylinder head D, in one of which it is kept constantly by the agency of t-he spiral spring h, until removed therefrom by the cam c' operating upon the pin.

IV, is an iron frame or box which holds and guides the stop rod V.

P, is a tool stock rmly confined to the shaft N, to which is attached the cutter E, by the screws t, t.

la, 7c, 7c, are projections or heads upon the surface of the cutter E, which are designed to produce their reversed forms upon the block to be operated upon. The cutter E, may be so constructed as to produce any form desired upon the material to be operated upon, the form thereby produced upon the latter being of course the reverse of the form of the cut-ter E.

R, is a bevel gear wheel confined to the shaft N, and plays into the bevel gear wheel S, upon shaft D2.

E2, is a spiral gear wheel on shaft D2, and meshes into the right hand worm w, on shaft C. The sha-ft D2, is supported by the boxes T', T', which are projections of the plate T, the latter being confined to the frame A.

C2,is a crank Wheel attached to the en d of shaft N, to which is Vconfined the sweep F2, by the wrist pin y.

U, and U, are supports of the shaftjN, and are confined to the arches B, B, by the screws f, f, in each of which are slots c, o', which permit the shaft N, to revolve ata greater or less relative distanceV from the cylinder, according to the size of the block to becoperated upon. v.

Z, is a lever, the upper arm of which is confined to the arch B, by the wrist pin b2, and the lower arm to the sweep F2, by theJ wrist pin a, and is also confined to the wedge X, by the wrist pin a2. The arm of the wedge X, the sides of which are a little beveled, plays in a groove formed by the lips n, n', which project from the pressure arch Y. The face l, of the wedge X, being in the form of an inclined plane, presses upon each.

of the ,spindles a, as they are presented by the revolution of the cylinder, and thus enables them to seize and hold the respective blocks of timber to be operated upon as they approach the foot of the hopper G, containing the blocks.

Y, is the pressure arch, which is supported by the arms A2, A2, the two latter being confined to the arch B', by the screw or bolts o, o. The end m, of the pressure arch Y, is made in the form of an inclined plane. `for the purpose of forcing the spindle a', a',

more firmly into the bloclrto be operated upon, after they have seized it through the instrumentality of the wedge X, and its connections.

H2, H2, H2, H2, H2, H2, (four of which only are shown in the drawings) are springs, one of the ends of each of which, is con- 'ined to the cylinder head D, by rivets 02,

and the other end to one of the respective spindles as seen in Figs. 2 and 8, the oflice of which is to force back the spindles after they shall have Vrespectively traversed t-he inside face of the pressure arch Y, thus releasing the block from the machine, the cutter E, at that time having performed its function upon it andcompleted the operation of turning.

I2, I2, are pulleys placed upon the main shaft C, between the two pairs of cylinder heads D, D, and D, D, by which the motive power is communicated through the intervention of the bands J 2, J2, (one of which being shown in Fig. 3,) to the pulleys b, b, &c., on the spindles a, a', &c.

K, is a shaft resting in the supports M, M',

. which are attached to the arches B, B, by

the screws cl, d', passing through slots e, e (the latter not being represented,) which permit the distance of the shaft in relation to the Vcylinder to be varied according to the work to be done, or rather according to the size of the block to be operated upon.

The shaft K, bears upon it a cylinder ,of

the drawings,`being composed of a series of saws-'and washers arranged alternately, the latterjbeing usedfor the purpose of separating the saws sufliciently to allow them better 'to' be properly set for the work to be done by them. This cylinder of saws is designed for the purpose of removing the simpler parts of the block to be turned, and thus preparing itlfor the action of the cutter E, and should be so arranged that the form described by its rotation should be the same, or nearly the same as that described by the rotation of the cutter E. The shaft K, has a motion independent of the other parts of the machine, the power being communicated .from the motor through the agency of the pulleys L, L, attached to its ends. Its direction of rotation should 'be the same as that of the spindles, the latter being thus able to present all the parts of the block to be operated upon, to the action of the cylinder F.

G is a hopper through which the blocks to be operated upon are fed. It. has a projection s, at its foot upon which the blocks rest and remain until they are respectively taken up by the spindles as before described. The hopper is fastened tothe rod B2, and supported at the lower end by the brace rod G2, which is attached to the frame A.

K2 is a guard board which is designed to prevent the blocks fed into the hopper from being lifted from or thrown out of their places, by the action of the spindles when taking from the foot of the hopper the block to be operated upon p Havingabove vdescribed the construction of my improved machine for turning, I now proceed to set forth its mode of operation.

The machine is made to operate by the application of the motive power, through the medium ofa belt., to the pulleys H, H, on the main shaftC, the latter revolving in the direction of the arrow. The pair of spindles a, a', &c., are put in motion by belts passing nearly around the pulleys I2, I2, and over the pulleys b, Vb &c., as seen in Fig. 4.

The motion from the main shaft C, is communicated to the shaft` N, through the agency of the spiral gear wheel E2, on the end of shaft D2, which meshes into the right hand worm w, the gear wheel S, on the upper end of shaft D2, and the gear wheel upon shaft N, thus causing the cutter E, to revolve in the direction of the arrow. The shaft N, in its revolution carries with it the crank wheel O, which causes the latch f2 on the arm Q, to pass over one of the segments of the ratchet wheel I, when it drops into one of the notches u, on the latter, which operation is effected by a one half revolution of the crank wheel O, the continued revolution of which draws the latch f2, just as far back in the contrary direction, thus causing the cylinder bearing the spindles to revolve one sixth of its circumference, the cam z' coming in contact With the pin j, on the stop rod V, the end g2 of which is thereby removed from the slot o, in the cylinder head D, in season to permit the rotation of the cylinder as before stated. The cam z', t-hen immediately liberates the rod V, and permits its end g2, to rest upon the periphery of the cylinder head D, until it is again forced into the next succeeding slot o, by t-he spiral spring zi, in which it remains until again removed by the cam z'. This movement of the cylinder brings one pair of the spindles (L, a, to the right position to enable them to take the lowest block in the hopper G, and another pair in position to have the block held by them operated upon by the saws F, and another pair in position to have the block held by them operated upon by the cutter E, and also causing another pair to liberate the block held by them, that block then having undergone the complete operation of being turned. After the pairs of spindles bearing blocks to be turned, have arrived in position for the action of the saws F, and the cutter E, the stop rod V, enters the slot fa, and holds the cylinder firmly in place, thereby preventing` its rotat-ion, until the function of turning is performed. The cutter E, revolves but once in turning each block, thus every instant presenting a new and succeeding portion of its edge to the block.

The Wedge X, is operated by the crank Wheel C2, on the end of the shaft N, through the intervention of the sweep F2 and the lever Z, each revolution of the crank Wheel C2 causing a reciprocating motion of the Wedge X, in the groove formed by the projections n, a. This motion causes the inclined face Z), of the Wedge X, to pass over and compress the spindles a, a', &c., as they are presented by the revolution of the cylinder, thus forcing the spurs of the spindles into the lowest block lying in the hopper Gr, sufficiently to enable them to lift it out, but not to rotate it. As the cylinder bearino' the spindles proceeds in its revolution, and the spindle bearing the block to be turned,

comes in contact with the inclined plane m, at the end of the pressure arch Y, the dog of the spindles are forced into the block thus causing it to revolve With the spindles holding it. The end of the spindle a', thus compressed, passes over the face of the pressure arch Y, until after the block held by that pair of spindles, is operated upon by the saws F, and the cut-ter E, When, on arriving at the other end of the arch Y, and passing off the same, the operation of turning them having been completed, it is made to resume its original position by the spring H2, connected With it, thus liberating the block held by it from the machine.

Before the blocks to be turned are put into the hopper G, they should be sawved in a square form of the desired size, and reduced to the desired length. The centers of their ends will then be presented to the spurs of each pair of spindles as they are brought by the cylinder in the right position for lifting the block to be turned from the hopper G.

Having described the construction and mode of operation of my improved machine for turning, what I claim and desire to secure by Letters Patent, is-

l. The spiral cutter E, varied in the form of its surface and edges according to the form to be cut upon the block, as above described.

2. The spiral cutter E, in combination With the several pairs of spindles a, a, arranged and operating substantially as above described.

3. The mode of rotating and holding the cylinder bearing the spindles a, a" &c., by means of the crank Wheel O, and cam z', the latch arm 2, and latch f2 the stop rod V, and the ratchet Wheel I, arranged and operating substantially as above described.

4. The compressing arch Y, constructed, and operating in combination with the spindles a, a &c., substantially as above described.

GIDEON SIBLEY.

lVit-nesses EDMUND BURKE, FRANCES M. BURKE.

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